In the world of modern food manufacturing, colour plays a vital role in consumer perception and enjoyment. Among the family of natural and synthetic colour additives, the substance identified by the E-number E163 colour stands out as a natural option sourced from plant pigments. This article explores E163 colour in depth, covering what it is, where it comes from, how it is produced, and how it is used across the food and beverage industry. By the end, readers will have a clear understanding of the science, regulation, safety considerations, and practical implications of E163 colour for product developers, retailers, and informed consumers alike.
What is E163 Colour?
The name E163 colour refers to a class of natural pigments known as anthocyanins. These pigments are responsible for a spectrum of red, purple, and blue hues found in many everyday foods, including berries, grapes, red cabbage, and various fruit skins. When used as a food colourant, E163 colour aims to enhance visual appeal, signal freshness, identify flavour profiles, or create brand differentiation. Unlike some synthetic dyes, E163 colour is derived from plant sources and is often marketed as a more natural option. The exact shade delivered by E163 colour can depend on pH, temperature, and the food matrix into which it is incorporated, making formulation a careful balancing act for developers.
The nature of anthocyanins
Anthocyanins are water-soluble pigments that belong to the flavonoid family. They are responsible for the vivid reds of raspberries, the deep purples of grapes, and the blue tinges seen in certain flowers. In foods, the appearance of E163 colour can shift with acidity: more acidic environments tend to push the hue toward red, while alkaline conditions can push toward blue. This pH sensitivity is a practical consideration for product design, especially in beverages, dairy, and confectionery where acidity varies significantly across products and storage conditions.
Sources and Extraction of E163 Colour
The practical appeal of E163 colour lies in its natural origins. The pigment is typically extracted from edible plant sources that are rich in anthocyanins. Common sources include blackcurrants, elderberries, blueberries, red cabbage, grapes, and coloured grains. Extraction methods can vary, but the goal is to obtain a stable concentrate that can be integrated smoothly into food systems without imparting undesirable flavours or aromas.
Natural origins and source selection
Choosing the right source for E163 colour depends on factors such as colour hue, stability, taste neutrality, and regulatory acceptability. For example, berry-derived anthocyanins may offer a deep red to purple tone, while grape-derived extracts might present a slightly different spectrum. Manufacturers weigh colour strength against potential flavour carryover, making source selection a strategic decision in product development.
Extraction and processing
Extraction typically involves aqueous or hydroalcoholic methods that preserve the pigment structure while removing unwanted components. Purification steps, filtration, and sometimes standardisation of anthocyanin content help deliver a consistent colour performance. Stability considerations are essential; some processes aim to protect the pigment from light exposure and oxidation, which can degrade colour over time.
How E163 Colour Is Used in the Food Industry
The application of E163 colour spans a broad range of foods and drinks. It is particularly valued in products where a natural appearance is desirable or where colour can signal the presence of fruit or berry flavours. Formulators must account for pH, temperature, light exposure, and the overall recipe when incorporating E163 colour into a finished product.
Beverages and dairy drinks
In beverages, E163 colour can help create appealing red, pink, or purple tones in fruit drinks, smoothies, yoghurt drinks, and fortified beverages. The pH sensitivity of anthocyanins means formulators may adjust acidity to achieve the desired hue, while also ensuring stability through processing steps and shelf life. In dairy beverages, E163 colour must be compatible with milk proteins and sugars so that the colour remains even and doesn’t fade or migrate with time.
Confectionery, bakery, and desserts
Confectionery and bakery products frequently rely on natural pigments to achieve vibrant, consumer-friendly colours. E163 colour can be employed in jams, jellies, icing, fondant, and even some fillings, where it contributes to a visually appealing palette that complements fruit flavours. In desserts, the pigment can brighten fruit mousses, sorbets, and yoghurt-based desserts without introducing artificial notes.
Frozen desserts and preserves
In frozen goods such as sorbets and ice creams, E163 colour must withstand freezing and thawing cycles. The pigment’s stability under cold conditions, light exposure during display, and interactions with stabilisers influence its effectiveness. For preserves and fruit compotes, E163 colour often enhances the natural look of the product, supporting consumer expectations around fruit content and quality.
Regulatory Status and Labelling Requirements for E163 Colour
Regulation surrounding E163 colour varies by jurisdiction, but in many regions the colour is approved as a permitted natural food additive. Labeling practices typically require that E163 colour be listed on ingredients panels, either as “E163” or as the common name “Anthocyanins,” followed by any applicable regulatory notes. Some jurisdictions also permit the use of the descriptor “natural colour” or “natural colourant” on packaging, provided it accurately reflects the source and regulatory status.
European Union and United Kingdom context
Within the European Union and the United Kingdom, E163 colour is recognised as a natural pigment with approved usage levels and scope. Regulatory assessments focus on factors such as maximum permitted concentrations, permissible food categories, and the need to declare the additive in ingredient lists. For manufacturers, this means careful documentation of sourcing, extraction methods, and batch-to-batch consistency to ensure compliance across products sold in different markets.
Global perspective
Beyond Europe, regulatory frameworks may differ in terms of permitted applications, maximum usage, and labelling conventions. Some regions require additional safety data sheets or allergen disclosures for plant-derived pigments. Importantly, consumer safety focuses on allergenicity, potential interactions with medications, and the overall safe consumption profile of anthocyanin-rich ingredients. For product developers, keeping abreast of evolving international guidelines helps reduce compliance risk when marketing products globally.
Chemistry, Stability, and Practical Performance of E163 Colour
Understanding the chemistry behind E163 colour helps explain why it behaves the way it does in different foods. Anthocyanins are sensitive to environmental factors, and their performance depends on the matrix in which they are used. This section explores how pH, temperature, light, and interactions with other ingredients shape the final appearance of E163 colour in a finished product.
pH dependence and colour shifts
One of the defining features of E163 colour is its pH-dependent hue. In acidic environments, the pigment tends toward red tones; at neutral pH, purplish hues may dominate; and under alkaline conditions, blue-shifting effects can occur. This characteristic means that the same E163 colour can look different in fruit juices, yogurts, and gel-based products. Formulators may adjust acidity with ingredients such as citric acid or phosphates to stabilise the desired shade while preserving flavour and texture.
Thermal stability and processing considerations
Anthocyanins can be sensitive to heat, which means they may degrade during pasteurisation, baking, or cooking. To mitigate colour loss, manufacturers often optimise processing times and temperatures, apply gentle heat, or incorporate protective carriers and stabilisers. Some formulations involve microencapsulation or co-pigmentation strategies to help maintain intensity through heat exposure and storage. The end result is a more reliable, consistent E163 colour that matches the intended product appearance.
Light exposure, storage, and shelf life
Light can drive pigment degradation, so packaging design and storage conditions matter when using E163 colour. Opaque or UV-protective packaging can help preserve hue during distribution and on shelves. Consumers who store products in bright cabinets or near windows may notice a faint fading of colour over time. When selecting E163 colour for a product, brand teams weigh the trade-off between shelf life, display appeal, and logistical considerations, balancing cost with quality.
Health Considerations and Safety
For most consumers, natural colours are perceived as safer alternatives to synthetic dyes. E163 colour, derived from edible plant sources, is generally regarded as safe when used within approved limits. Nevertheless, it is prudent for manufacturers to consider all health-related factors when formulating products that include anthocyanins, from potential interactions with medications to sensitive populations such as children or those with specific dietary restrictions.
Safety profile and toxicology
Regulatory bodies assess the safety of E163 colour based on toxicological data, intake levels, and exposure scenarios. When used as directed, anthocyanin-rich pigments are typically well tolerated. Some people may notice mild digestive effects or skin sensitivities when exposed to concentrated extracts, but these instances are relatively uncommon. The bottom line for most consumers is that E163 colour is a natural pigment with a long history of use in foods and beverages, rather than a synthetic compound requiring strict mitigation strategies.
Allergen considerations and dietary suitability
Anthocyanin sources vary; some individuals may have specific allergies to berry or fruit constituents. While the allergen risk associated with E163 colour itself is low, product labels should clearly indicate source materials if required by regulation or brand policy. For those with dietary preferences or restrictions (such as vegan, halal, kosher, or gluten-free), E163 colour commonly presents no conflict, but verification of sourcing and processing methods remains prudent in certain supply chains.
Consumer Guidance: Reading Labels and Understanding E163 Colour
For shoppers and kitchen enthusiasts, understanding how E163 colour is declared on packaging is essential. Regulations may require listing the additive as “E163” or as the common name “Anthocyanins.” In some markets, the label might state “natural colour” or a specific hue descriptor. Recognising these possibilities helps consumers make informed choices about products and understand what they are buying.
How to identify E163 colour on labels
Look for terms such as “E163,” “Anthocyanins,” or “Natural colour” within the ingredients listing. In some countries, the additive may be described by its source, for example “grape extract (anthocyanins)” or “berry pigment.” Packaging that emphasises natural ingredients, fruit content, or clean-label positioning is often aligned with the use of E163 colour, though this is not universal. If in doubt, consult official regulatory guidance or contact the manufacturer for specifics about pigment origin and processing.
Alternatives and substitutes to E163 Colour
Where a product requires a different aesthetic or where dyes are restricted for regulatory or consumer reasons, alternatives exist. Other natural colourants—such as beetroot extract (E162) for red hues or paprika-based carotenoids for orange tones—can be used in combination with E163 colour to achieve the desired palette. Synthetic options remain available in many markets, but natural alternatives continue to gain traction among brands seeking clean-label credibility or specific flavour compatibility.
Practical Applications Across Food Categories
From beverages to bakery, E163 colour plays a practical role in the visual language of food. Understanding the typical applications across categories helps product developers visualise how the pigment can contribute to successful launches and ongoing line extensions.
Beverages
In soft drinks, fruit juices, and fortified beverages, E163 colour often serves as a stabilising, visually appealing element. The hue can be tuned to align with a brand’s flavour profile, while careful formulation helps ensure colour uniformity across batches. For ready-to-drink teas and plant-based milks, anthocyanin-based pigments can support a natural appearance without sacrificing taste or mouthfeel.
Confectionery and desserts
Confectionery products such as fruit chews, jelly rings, and decorative toppings leverage E163 colour to create vibrant, fruit-forward aesthetics. In dairy desserts and frozen treats, the pigment contributes to a lively palette that resonates with consumer expectations around fresh fruitiness and natural sweetness. The key is maintaining colour stability during storage and consumer handling, particularly in products subjected to temperature fluctuations.
Bakery and breakfast goods
In bakery applications, E163 colour can brighten fillings, frostings, and glazes, adding an appealing fruit-inspired dimension to pastries and morning goods. For breakfast cereals and yoghurt-covered cereals, the pigment can deliver a cohesive appearance that harmonises with sugar content and moisture, while remaining stable through processing and packaging.
Dairy and plant-based alternatives
In yoghurts, panna cotta, puddings, and plant-based beverages, E163 colour helps convey flavour expectations through colour. The pigment’s performance in dairy matrices is influenced by interactions with proteins and fats, so formulators often test multiple stabilisers or carriers to preserve a consistent shade from production to consumption.
Global Perspectives and Market Trends
The adoption of E163 colour reflects broader trends toward natural ingredients, consumer demand for clean labels, and regulatory harmonisation. This section considers how E163 colour is perceived and utilised across different regions, including developing markets that are expanding their range of natural colourants.
Industry trends in the UK and Europe
In the UK and Europe, there is growing consumer interest in natural colourants, with E163 colour positioned as a credible option for brands seeking to reduce synthetic dye use. Retailers often champion products that emphasise plant-based ingredients and minimal processing. Innovation cycles in the European market include hybrid colour systems that combine E163 colour with other natural pigments to achieve reliable shade stability across a range of foods.
Global supply and demand dynamics
Across the globe, demand for natural colours continues to rise as manufacturers respond to regulatory expectations and consumer preferences. Sourcing anthocyanin-rich materials in sustainable ways is a priority for many companies, with a focus on supply chain traceability, ethical sourcing, and environmental impact. This macro trend supports investment in improved extraction technologies, standardised pigment profiles, and scalable production processes for E163 colour.
FAQs About E163 Colour
Frequently asked questions help demystify the role of E163 colour in everyday products. Here are concise answers to common queries that readers may have when exploring this topic further.
Is E163 Colour safe for children?
As a natural pigment with regulatory approval in many jurisdictions, E163 colour is generally considered safe for children when consumed within normal dietary amounts. Parents and caregivers should always check product packaging for specific serving sizes and consult dietary guidelines if there are concerns about allergy or intolerance.
Can E163 Colour affect taste?
Anthocyanins in E163 colour are typically selected for minimal impact on flavour. In some cases, very concentrated extracts can impart a slight berry-like nuance, but the formulation process aims to keep taste unaffected for most products. Sensory testing is a standard part of development to ensure hue does not compromise flavour perception.
Does E163 Colour require special storage?
Storage considerations are primarily about preserving colour stability. Dark, cool, and tightly sealed packaging helps prevent light-induced fading and temperature-related degradation. In consumer homes, standard refrigeration is often sufficient for dairy products or fruit-based desserts that utilise E163 colour, but always follow package directions for best results.
Conclusion: The Role of E163 Colour in Modern Food Development
E163 colour represents a confluence of natural sourcing, practical functionality, and regulatory oversight that makes it a popular choice for brands seeking to balance aesthetics with consumer expectations for natural ingredients. By understanding the behaviour of E163 colour—how it responds to pH, heat, light, and its interactions with other ingredients—developers can craft products that not only look appealing but also deliver consistent, reliable colour from production to plate. The ongoing evolution of extraction technologies, stabilisation strategies, and transparency in sourcing will continue to shape how E163 colour is used in future food innovations. Whether you are a product creator, retailer, or curious consumer, recognising the capabilities and limitations of E163 colour helps you approach foods and drinks with greater confidence and appreciation for the science behind the colour on your plate.